Exercise devices – User manipulated force resisting apparatus – component... – Utilizing force resistance generated by user only
Reexamination Certificate
2000-03-02
2001-12-11
Donnelly, Jerome (Department: 3764)
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing force resistance generated by user only
C127S070000
Reexamination Certificate
active
06328680
ABSTRACT:
This invention pertains generally to exercise and fitness equipment and, more particularly, to an exercise wheel which is particularly suitable for use in exercising the abdominal muscles.
Heretofore, exercise wheels have been provided for use in exercising the abdominal muscles. Such devices typically consist of a wheel having a diameter of about six inches mounted in the center of a shaft, with grips on both sides of the wheel. The exerciser grasps the device by the grips and rolls the wheel back and forth along the floor or other exercising surface.
Such devices are difficult to balance and operate. After the wheel has been rolled forward away from the body, it is very difficult to roll it back to the starting position. In addition, it very difficult to keep the wheel from rolling forward too far, which puts undue stress on the lower back of the exerciser.
It is in general an object of the invention to provide a new and improved abdominal exercise wheel.
Another object of the invention is to provide an abdominal exercise wheel of the above character which overcomes the limitations and disadvantages of the exercise wheels of the prior art.
These and other objects are achieved in accordance with the invention by providing an exercise wheel having a shaft, a pair of axially spaced wheels mounted on the shaft for rolling engagement with a surface, handle means adapted to be grasped by an exerciser to roll the wheels along the surface away from a starting position, and resilient means connected between the wheels and the handle means for urging the device to return to the starting position. In one disclosed embodiment, the resilient means comprises clock springs mounted inside the wheels, and in another it comprises torsion springs positioned within the handles.
REFERENCES:
patent: D. 306886 (1990-03-01), Shiek et al.
patent: 1824920 (1931-09-01), Novak
patent: 2821344 (1958-01-01), Lykken et al.
patent: 2821394 (1958-01-01), Barbeau
patent: 3403906 (1968-10-01), Burzenski
patent: 3616794 (1971-11-01), Gromala
patent: 3752475 (1973-08-01), Ott
patent: 3938803 (1976-02-01), Wilmoth et al.
patent: 4892305 (1990-01-01), Lynch et al.
patent: 5433685 (1995-07-01), Winslow et al.
patent: 5707325 (1998-01-01), Chiou
patent: 6017296 (2000-01-01), Tang et al.
Donnelly Jerome
Flehr Hohbach Test Albritton & Herbert LLP
LandOfFree
Abdominal exercise wheel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Abdominal exercise wheel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abdominal exercise wheel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2580876